PPP not Working

hi all,
i’m now using Mikrotik 2.9.27 all is fine, but i want to ask you for solving this New problem that occuring now.
the PPP not working, but the internet is working so fine.
3.GIF
2.GIF
1.GIF

Need more information on your hardware/ISP configuration…

you have to use newest version available and that is 2.9.50 or 3.0rc13 as there are many bugs resolved since that version